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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries from C$ 638

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SLU
12 Jul — 19 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Castries

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Castries
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2026.

Sat 3/108:30 p.m.
YUL
-
SLU
2 stops22h 30m
Multiple Airlines
Sat 10/1012:35 p.m.
SLU
-
YUL
2 stops23h 16m
Multiple Airlines
Deal found 7/6C$ 974
Sun 6/96:00 a.m.
YUL
-
SLU
2 stops13h 00m
Multiple Airlines
Sun 13/912:35 p.m.
SLU
-
YUL
2 stops19h 01m
Multiple Airlines
Deal found 11/6C$ 997
Fri 20/117:10 p.m.
YUL
-
SLU
2 stops22h 50m
Multiple Airlines
Sat 28/1112:35 p.m.
SLU
-
YUL
2 stops20h 48m
Multiple Airlines
Deal found 9/6C$ 1,035
Sun 19/77:00 a.m.
YUL
-
SLU
2 stops12h 00m
Multiple Airlines
Sat 1/812:35 p.m.
SLU
-
YUL
2 stops19h 10m
Multiple Airlines
Deal found 10/6C$ 1,335
Sat 20/67:00 a.m.
YUL
-
SLU
3 stops15h 10m
Multiple Airlines
Fri 26/63:20 p.m.
SLU
-
YUL
1 stop27h 10m
Multiple Airlines
Deal found 10/6C$ 1,708
Tue 21/711:00 p.m.
YUL
-
SLU
2 stops42h 05m
Air Caraïbes
Sun 2/83:15 p.m.
SLU
-
YUL
2 stops29h 45m
Air Caraïbes
Deal found 10/6C$ 2,562

Find flight deals from Pierre Elliott Trudeau Intl to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 June 2026.

Round-trip from

C$ 974

One-way from

C$ 638
3/10-10/10
  • 3/10-10/10
  • 4 total stops
  • 45h 46m total
  • Montreal to Castries
Search Deals
20/7
  • 20/7
  • 2 total stops
  • 12h 00m total
  • Montreal to Castries
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 June 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 3/10

8:30 p.m.-7:00 p.m.

2 stops22h 30m

Castries George F. L. Charle

Sat 10/10

12:35 p.m.-11:51 a.m.

2 stops23h 16m

C$ 974

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

6:00 a.m.-7:00 p.m.

2 stops13h 00m

Castries George F. L. Charle

Sun 13/9

12:35 p.m.-7:36 a.m.

2 stops19h 01m

C$ 997
Quickest round-trip

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 20/11

10:10 p.m.-7:00 p.m.

2 stops19h 50m

Castries George F. L. Charle

Sat 28/11

12:35 p.m.-9:40 p.m.

1 stop10h 05m

C$ 1,048

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

11:00 p.m.-5:05 p.m.

2 stops42h 05m

Castries George F. L. Charle

Sun 2/8

3:15 p.m.-9:00 p.m.

2 stops29h 45m

C$ 2,562

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Wed 29/7

11:00 p.m.-5:15 p.m.

2 stops42h 15m

Castries George F. L. Charle

Sun 9/8

3:15 p.m.-9:00 p.m.

2 stops29h 45m

C$ 2,594

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

11:00 p.m.-5:05 p.m.

2 stops42h 05m

Castries George F. L. Charle

Thu 30/7

1:55 p.m.-9:00 p.m.

2 stops31h 05m

C$ 2,641

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

11:00 p.m.-5:05 p.m.

2 stops42h 05m

Castries George F. L. Charle

Fri 31/7

3:20 p.m.-9:00 p.m.

2 stops29h 40m

C$ 2,680

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 17/7

11:00 p.m.-6:10 p.m.

2 stops43h 10m

Castries George F. L. Charle

Sun 2/8

3:15 p.m.-9:00 p.m.

2 stops29h 45m

C$ 2,792

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Wed 29/7

11:00 p.m.-5:15 p.m.

2 stops42h 15m

Castries George F. L. Charle

Thu 6/8

1:55 p.m.-9:00 p.m.

2 stops31h 05m

C$ 2,872
Cheapest one-way
Quickest one-way

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 20/7

7:00 a.m.-7:00 p.m.

2 stops12h 00m

C$ 638

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Pierre Elliott Trudeau Intl to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Castries from Montreal Pierre Elliott Trudeau Intl?

    For a flight from Montreal Pierre Elliott Trudeau Intl to Castries, you will be flying into George F. L. Charle. Castries George F. L. Charle (SLU) is just 1.2 km from the centre of the city. George F. L. Charle is the only Castries airport and it handles 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day. 0 airlines have flights to Castries George F. L. Charle from Montreal Pierre Elliott Trudeau Intl on a regular basis.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Castries that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Castries?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Castries.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Castries?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Gros Islet
Marigot Bay

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Alternative routes for Pierre Elliott Trudeau Intl to Castries

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Pierre Elliott Trudeau Intl to Castries flights

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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Castries?

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Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Castries?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Castries from Pierre Elliott Trudeau Intl.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Castries with no change fees?

Certainly. Search results for flights to Castries from Pierre Elliott Trudeau Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Castries become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Castries from Pierre Elliott Trudeau Intl today and book when prices fit your budget.

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